c6c8cabdaf
moved click tracking as a new State struct to input::mouse made cursor field of text_input state private brought back cursor type(Index, Selection) representation with a state enum cleaned out some stuff (but not enough/all) TODO: Documentation (sigh) TODO: Editor struct TODO: some (hopefully) small improvements here and there
70 lines
2 KiB
Rust
70 lines
2 KiB
Rust
//! Build mouse events.
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mod button;
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mod event;
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use crate::Point;
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pub use button::Button;
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pub use event::{Event, ScrollDelta};
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use std::time::{Duration, SystemTime};
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/// enum to track the type of the last click
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#[derive(Debug, Copy, Clone)]
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pub enum Interaction {
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/// Last Click was a single click
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Click(Point),
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/// Last Click was a double click
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DoubleClick(Point),
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/// Last Click was a triple click
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TripleClick(Point),
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}
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/// Compiler bully
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#[derive(Debug, Copy, Clone)]
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pub struct State {
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last_click: Option<Interaction>,
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last_click_timestamp: Option<SystemTime>,
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}
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impl Default for State {
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fn default() -> Self {
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State {
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last_click: None,
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last_click_timestamp: None,
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}
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}
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}
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impl State {
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/// processes left click to check for double/triple clicks
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/// return amount of repetitive mouse clicks
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/// (1 -> double click, 2 -> triple click)
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pub fn update(&mut self, position: Point) -> Interaction {
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self.last_click_timestamp = Some(SystemTime::now());
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self.last_click = match self.last_click {
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None => Some(Interaction::Click(position)),
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Some(x) => match x {
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Interaction::Click(p) if self.process_click(p, position) => {
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Some(Interaction::DoubleClick(position))
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}
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Interaction::DoubleClick(p)
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if self.process_click(p, position) =>
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{
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Some(Interaction::TripleClick(position))
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}
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_ => Some(Interaction::Click(position)),
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},
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};
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self.last_click.unwrap_or(Interaction::Click(position))
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}
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fn process_click(&self, old_position: Point, new_position: Point) -> bool {
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old_position == new_position
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&& SystemTime::now()
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.duration_since(
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self.last_click_timestamp.unwrap_or(SystemTime::UNIX_EPOCH),
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)
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.unwrap_or(Duration::from_secs(1))
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.as_millis()
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<= 500
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}
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}
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